Vehicle-spring



(No Modl'.) v

R. OROOKER & J. DIEHL.

VEHICLE SPRING.

No. 371,826. Patented 001;. 18, 1887.

Franksville, in the county of Racine, State of PATENT EEicE.

RICHARD OROCKER, oE'MAZoMANrE,

AND JOHN DIEHL, OF FRANKSVILLE,

WISCONSIN.

VEHICLE-SPRING;

SPECIFICATION forming part of Letters Patent No. 371,826, dated QCtouer18, 1887.

Application filed June 23, 1887.

To add whom it may concern.-

Be it known that we, RICHARD CROCKER and JOHN DIEHL, of Mazoxnanie, inthe county of Dane, and in the State of Wisconsin, and of Wisconsin,respectively, have invented certain new and useful Improvements inVehicle- Springs; and we do hereby declare that the following is a full,clear, and exact description thereof.

Our invention relates to vehicle-springs, being an improvement on thedevice setforth in our application No. 237,671, filed May 10, 1887, andwill be fully described hereinafter.

In the drawings, Figure 1 is a longitudinal elevation of our inventionin place, partly in section. Fig. 2 is a detail, and Fig. 3 is a detailshowing a modification.

A is a bolster having the usual standards. B is a body-bar, the ends ofwhich are bifurcated, so as to embrace the standards.

011 its upper side the bolster is re-enforced, as at a b a, by metallicplates to receive the ends of a semi-elliptic spring, 0, which ends areslotted to straddle the bolts 0, the heads (I of which bind the ends ofthe springs down on the re-enforces; but as that portion of each boltjust below its head is of greater diameter than the rest of its shank,it forms a shoulder, e, that prevents the head from clamping the end ofthe spring so tightly as to keep it from sliding, and thus interferingwith the proper play of the spring.

Just back of the slot, in each end of the spring 0, a cup, D, is securedto it, which on its inside receives the lower end of a spring, E, and onits outsideis embraced by the lower end of'a spring, F, which latterincloses the spring E. The upper ends of the springs F project upthrough openings in the body-bar B, and each abuts against a plate, G,that is secured to the body-bar by bolts 9 g.

The springs F are longer and stiffer than the springs E, which latterare not designed to come into play unless the load is so great as todepress spring F to the length of spring E.

The center of the spring 0 is secured to the under side of the center ofthe body-bar by a plate, H, and bolts h h, and this plate carries threesprings, K K K, suspended over the re enforce b. l The center spring, K,is longer Serial No. 242,203. (No model.)

than the springs K K, and therefore when bar B is depressed the spring Kbegins to act before the springs K K.

As in the modification shown in Fig. 3, we 53 may secure the cups Ddirectly to the re en forces a, and use a shorter spring, 0., the endsof which bear each upon one end of a re-enorce, a.

To prevent the nuts of bolts h from Shaking 6o loose and falling off, wemay perforate the. lower ends of the bolts and insert sp'ringkeys h inthese perforations after the nuts have been screwed on.

The plate H is made removable, so that it may be taken off and replacedby a plate carrying only the center spring, K", or the two outsidesprings, K K; or a plate H may be used without any spring at all,leaving the load to be carried by the springs F, or F and 0 E together,the object of our invention being to provide a spring which may beeasily adapted for carrying anyload, from the lightest to the heaviest.To center the springs E and F and prevent them from interfering witheach other, we provide each set with a washer having a horizontalflange, G, that rests on top of spring F, and between it and plate G,and a barrel, G", that incloses the upper end of spring E and shields itfroin contact with spring F.

. Having thus fully described our invention, what we claim as new, anddesire to secure by Letters Patent, is-

1. A vehicle-spring comprising a bar, a

semi-elliptic spring, suitable means for securing the ends of the latterto the vehiclebol ster, and two spiral springs of varyinglength andstiffness arranged one within another and interposed between said endsof the semi-ellipo ing the latter to the vehicle -bolster, spiralsprings interposed between the ends of the semi-elliptic spring andthose of the bar and two or more intermediate spiral springs arrangedtobear upon the bolster when said semi-elliptic spring isdepressed,substantially as set forth.

3. A vehicle-spring comprising a bar, a

semi-elliptic spring, suitable means for securing the latter to thevehicle-bolster, spiral springs interposed between the ends of thesemielliptic spring and those of the bar, and three intermediate spiralsprings, the center one of which has the greatest length, arranged tobear upon the bolster in proportion to the depression of saidsemi-elliptic spring, substantially as set forth.

4. A vehicle spring comprising a bar, a semi-elliptic spring, suitablemeans for securing the latter to the vehicle-bolster, cups arranged onthesemi-elliptic spring, a spiral spring seated in each cup and arrangedto be compressed by a downward movement of the bar,and another spiralspring of greater length and stiffness arranged to surround the onefirst named, substantially as set forth.

5. A vehicle-spring comprising a bar, a semi-elliptic spring, suitablemeans for securing the latter to the vehicle-bolster, a washer connectedto each end of the bar and provided with a depending barrel, a spiralspring having its upper end inclosed by said barrel and its lower endrested upon the semi-elliptio spring, and another spiral spring ofgreater length and stiffness arranged to surround the one first named,substantially as set forth.

the vehicle-holster, and spiral springs interposed between the ends ofsaid semi-elliptic spring and those of the bar, substantially as setforth.

7. A vehicle-spring comprising a bar having each end thereof providedwith a covered opening, a semi-elliptic spring, suitable means forsecuring the latter to the vehicle-bolster, and spiral springsinterposed between said ends of the semi-elliptic spring and bar andhaving their upper ends arranged to engage the openings in the latter,substantially as set forth.

In testimony that we claim the foregoing we have hereunto set our hands,at Franksville, in the county of Racine and State of VVisconsin, in thepresence of two witnesses.

RICHARD OROGKER. JOHN DIEHL.

Witnesses:

'B. DIEDRICH,

J. H. SUMMERTON.'

